$wp-mute-solo-color: #343a40 !default;
$wp-mute-solo-hover-color: #fff !default;
$wp-mute-solo-focus-color: rgba(52, 58, 64, 0.5) !default;
$wp-btn-danger-background-hover-color: #c82333 !default;
$wp-btn-danger-border-hover-color: #bd2130 !default;
$wp-btn-danger-background-color: #dc3545 !default;
$wp-btn-danger-border-color: #dc3545 !default;
$wp-btn-danger-focus-color: rgba(225, 83, 97, 0.5) !default;
$wp-btn-danger-color: #fff !default;
$wp-btn-info-background-hover-color: #138496 !default;
$wp-btn-info-border-hover-color: #117a8b !default;
$wp-btn-info-background-color: #17a2b8 !default;
$wp-btn-info-border-color: #17a2b8 !default;
$wp-btn-info-focus-color: rgba(58, 176, 195, 0.5) !default;
$wp-btn-info-color: #fff !default;
$wp-selection-background-color: rgba(0, 0, 0, 0.1) !default;
$wp-selection-point-color: red !default;
$wp-fade-background-color: rgba(0, 0, 0, 0.1) !default;
$wp-channel-color: grey !default;
$wp-channel-progress-color: #fbbc04 !default;
$wp-cursor-color: black !default;
$wp-tracks-container-background-color: #e0eff1 !default;
$wp-controls-background-color: #fff !default;
$wp-controls-border-color: #000 !default;
$wp-range-slider-label-color: black !default;
$wp-range-slider-color: goldenrod !default;
$wp-range-slider-focus-color: black !default;
$wp-range-slider-background-color: #ddd !default;
$wp-range-slider-background-focus-color: #bbb !default;
$wp-annotation-box-border-color: grey !default;
$wp-annotation-current-background-color: #ebf4f6 !default;
$wp-annotation-icon-hover-color: orange !default;

:root {
  --wp-controls-border-color: #{$wp-controls-border-color};
  --wp-controls-background-color: #{$wp-controls-background-color};
  --wp-mute-solo-color: #{$wp-mute-solo-color};
  --wp-mute-solo-hover-color: #{$wp-mute-solo-hover-color};
  --wp-mute-solo-focus-color: #{$wp-mute-solo-focus-color};
  --wp-btn-danger-background-hover-color: #{$wp-btn-danger-background-hover-color};
  --wp-btn-danger-border-hover-color: #{$wp-btn-danger-border-hover-color};
  --wp-btn-danger-background-color: #{$wp-btn-danger-background-color};
  --wp-btn-danger-border-color: #{$wp-btn-danger-border-color};
  --wp-btn-danger-focus-color: #{$wp-btn-danger-focus-color};
  --wp-btn-danger-color: #{$wp-btn-danger-color};
  --wp-btn-info-background-hover-color: #{$wp-btn-info-background-hover-color};
  --wp-btn-info-border-hover-color: #{$wp-btn-info-border-hover-color};
  --wp-btn-info-background-color: #{$wp-btn-info-background-color};
  --wp-btn-info-border-color: #{$wp-btn-info-border-color};
  --wp-btn-info-focus-color: #{$wp-btn-info-focus-color};
  --wp-btn-info-color: #{$wp-btn-info-color};
  --wp-fade-background-color: #{$wp-fade-background-color};
  --wp-channel-color: #{$wp-channel-color};
  --wp-channel-progress-color: #{$wp-channel-progress-color};
  --wp-cursor-color: #{$wp-cursor-color};
  --wp-selection-background-color: #{$wp-selection-background-color};
  --wp-selection-point-color: #{$wp-selection-point-color};
  --wp-tracks-container-background-color: #{$wp-tracks-container-background-color};
  --wp-range-slider-label-color: #{$wp-range-slider-label-color};
  --wp-range-slider-color: #{$wp-range-slider-color};
  --wp-range-slider-focus-color: #{$wp-range-slider-focus-color};
  --wp-range-slider-background-color: #{$wp-range-slider-background-color};
  --wp-range-slider-background-focus-color: #{$wp-range-slider-background-focus-color};
  --wp-annotation-box-border-color: #{$wp-annotation-box-border-color};
  --wp-annotation-current-background-color: #{$wp-annotation-current-background-color};
  --wp-annotation-icon-hover-color: #{$wp-annotation-icon-hover-color};
}

.playlist {
  *, ::after, ::before {
    box-sizing: border-box;
  }

  margin: 2em 0;

  .btn:not(:disabled) {
    cursor: pointer;
  }

  .btn {
    display: inline-block;
    font-weight: 400;
    text-align: center;
    vertical-align: middle;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    background-color: transparent;
    border: 1px solid transparent;
    transition: color .15s ease-in-out,
      background-color .15s ease-in-out,
      border-color .15s ease-in-out,
      box-shadow .15s ease-in-out;
  }

  .btn-outline-dark {
    color: var(--wp-mute-solo-color);
    border-color: var(--wp-mute-solo-color);
  }

  .btn-outline-dark:hover {
    color: var(--wp-mute-solo-hover-color);
    background-color: var(--wp-mute-solo-color);
    border-color: var(--wp-mute-solo-color);
  }

  .btn-outline-dark:active:focus, .btn-outline-dark:focus {
    box-shadow: 0 0 0 0.2rem var(--wp-mute-solo-focus-color);
  }

  .btn-danger {
    color: var(--wp-btn-danger-color);
    background-color: var(--wp-btn-danger-background-color);
    border-color: var(--wp-btn-danger-border-color);
  }

  .btn-danger:hover {
    color: var(--wp-btn-danger-color);
    background-color: var(--wp-btn-danger-background-hover-color);
    border-color: var(--wp-btn-danger-border-hover-color);
  }

  .btn-danger:active:focus, .btn-danger:focus {
    box-shadow: 0 0 0 0.2rem var(--wp-btn-danger-focus-color);
  }

  .btn-info {
    color: var(--wp-btn-info-color);
    background-color: var(--wp-btn-info-background-color);
    border-color: var(--wp-btn-info-border-color);
  }

  .btn-info:hover {
    color: var(--wp-btn-info-color);
    background-color: var(--wp-btn-info-background-hover-color);
    border-color: var(--wp-btn-info-border-hover-color);
  }

  .btn-info:active:focus, .btn-info:focus {
    box-shadow: 0 0 0 0.2rem var(--wp-btn-info-focus-color);
  }

  .btn-xs {
    padding: .25rem .4rem;
    font-size: .875rem;
    line-height: .5;
    border-radius: .2rem;
  }

  .btn-group {
    margin-bottom: 0.3rem;
  }

  .btn-group > .btn:not(:first-child) {
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
  }

  .btn-group > .btn:not(:last-child) {
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
  }

  .playlist-time-scale {
    height: 30px;
  }

  .playlist-tracks {
    background: var(--wp-tracks-container-background-color);
  }

  .channel {
    background: var(--wp-channel-color);
  }

  .channel-progress {
    background: var(--wp-channel-progress-color);
  }

  .cursor {
    background: var(--wp-cursor-color);
  }

  .wp-fade {
    background-color: var(--wp-fade-background-color);
  }

  .state-cursor,
  .state-select {
    cursor: text;
  }

  .state-fadein {
    cursor: w-resize;
  }

  .state-fadeout {
    cursor: e-resize;
  }

  .state-shift {
    cursor: ew-resize;
  }

  .selection.point {
    background: var(--wp-selection-point-color);
  }

  .selection.segment {
    background: var(--wp-selection-background-color);
  }

  .channel-wrapper.silent .channel {
    opacity: 0.3;
  }

  .controls {
    background: var(--wp-controls-background-color);
    text-align: center;
    border: 1px solid var(--wp-controls-border-color);
    border-radius: 0.2rem;

    .track-header {
      overflow: hidden;
      height: 26px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0 0.2rem;
      font-size: 0.75rem;

      button {
        width: 20px;
        height: 20px;
        display: flex;
        align-items: center;
        justify-content: center;
      }
    }

    label {
      width: 100%;
      display: flex;
      justify-content: space-between;
      font: normal normal normal 14px/1 FontAwesome;
      font-size: inherit;
      text-rendering: auto;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
      transform: translate(0, 0);
      padding: 0 1rem;
      margin-bottom: 0.2rem;
    }

    label:before {
      color: var(--wp-range-slider-label-color);
      font-size: 18px;
      padding-right: 5px;
      -moz-osx-font-smoothing: grayscale;
    }

    label:after {
      color: var(--wp-range-slider-label-color);
      font-size: 18px;
      padding-left: 5px;
    }

    label.volume:before {
      content: "\f027";
    }

    label.volume:after {
      content: "\f028";
    }

    label.stereopan:before {
      content: "L";
    }

    label.stereopan:after {
      content: "R";
    }

    input[type="range"] {
      -webkit-appearance: none;
      -moz-appearance: none;
      appearance: none;

      display: inline-block;
      width: 75%;
    }

    input[type="range"]::-webkit-slider-runnable-track {
      height: 5px;
      background: var(--wp-range-slider-background-color);
      border: none;
      border-radius: 3px;
    }

    input[type="range"]::-moz-range-track {
      height: 5px;
      background: var(--wp-range-slider-background-color);
      border: none;
      border-radius: 3px;
    }

    input[type="range"]::-webkit-slider-thumb {
      -webkit-appearance: none;
      -moz-appearance: none;
      appearance: none;

      border: none;
      height: 12px;
      width: 12px;
      border-radius: 50%;
      background: var(--wp-range-slider-color);
      margin-top: -5px;
      cursor: ew-resize;
    }

    input[type="range"]::-moz-range-thumb {
      -webkit-appearance: none;
      -moz-appearance: none;
      appearance: none;

      border: none;
      height: 12px;
      width: 12px;
      border-radius: 50%;
      background: var(--wp-range-slider-color);
      margin-top: -5px;
      cursor: ew-resize;
    }

    input[type="range"]:focus {
      outline: none;
    }

    input[type="range"]:focus::-webkit-slider-runnable-track {
      background: var(--wp-range-slider-background-focus-color);
    }

    input[type="range"]:focus::-moz-range-track {
      background: var(--wp-range-slider-background-focus-color);
    }

    input[type="range"]:focus::-webkit-slider-thumb {
      border: 2px solid var(--wp-range-slider-focus-color);
    }

    input[type="range"]:focus::-moz-range-thumb {
      border: 2px solid var(--wp-range-slider-focus-color);
    }
  }

  .annotations {
    .annotations-boxes {
      text-align: center;
    }

    .annotation-box {
      border: 2px dashed var(--wp-annotation-box-border-color);
      padding: 0 10px;
      line-height: 1.5;

      .resize-handle {
        background: var(--wp-annotation-box-border-color);
        opacity: 0.3;
        cursor: ew-resize;
      }

      .id {
        cursor: pointer;
        display: inline-block;
        width: 100%;
        height: 100%;
      }
    }

    .annotations-text {
      font-size: 19px;
      font-weight: 300;
      margin-top: 1em;
      height: 160px;
      overflow-x: hidden;
      overflow-y: auto;

      .annotation {
        display: flex;
        flex-direction: row;
        flex-wrap: nowrap;
        justify-content: flex-start;
        align-items: stretch;

        span {
          margin: 0.3rem 0.6rem;

          &:last-of-type {
            margin-right: 1.2rem;
          }
        }

        .annotation-id {
          font-size: 16px;
          line-height: 27px;
        }

        .annotation-start {
          font-size: 16px;
          line-height: 27px;
        }

        .annotation-end {
          font-size: 16px;
          line-height: 27px;
        }

        .annotation-lines {
          flex-grow: 10;
        }

        .annotation-actions {
          flex-basis: auto;
          width: 85px;
          text-align: right;
          font-size: 16px;

          i {
            margin-right: 0.6rem;

            &:last-of-type {
              margin-right: 0;
            }

            &:hover {
              color: var(--wp-annotation-icon-hover-color);
              cursor: pointer;
            }
          }
        }
      }
    }

    .current {
      background-color: var(--wp-annotation-current-background-color);
    }
  }
}